I noticed many leaves of a Midland Hawthorn at Bunny Old Wood (VC56, SK52) with large reddish blisters. http://www.flickr.com/photos/mausboam/2470783856 ...
... ideas? ... Yes, I did consider it at the time, and realise I've not provided all the information. I had a good look at both sides of the leaf with a hand...
Has anyone else noticed a large number of oak apples this year? I had a walk around New Haw and the Wey Canal today and many oaks were heavily infected. Sarah...
In my garden near Brussels, one oak has nearly no leaves but plenty of apple galls. Could there be a relation between rainy spring and number of galls ? ...
Hi all, In early November 2007 I saw (in Middelburg, province of Zeeland, The Netherlands) quite some (old) galls - as shown in the photographs - on twigs of...
Hi, At first sight they loook like immature acorns. Turkey oak acorns overwinter, like you photo, then the acorn develops in the second summer. Have you cut...
Robert, you are right, that's exactly what they are. But Floris, you are certainly not the first one to think the acorns could be galls. Best wishes Karsten ...
Hoi Floris, Since you also found Andricus grossulariae on the catkins of Quercus in Zeeland I think you should consider this as an options for your N. saliens....
Just reading the 22/2 issue, I would like to mention that this gall Obolodiplosis robiniae is also found in the public parcs in Brussels. In June 2007, the...
Hi there, Neuroterus saliens on Turkey oak is a small irregular ball or kidney shaped gall along the mid-rip on the leaves. They are somewhat similar to...
... on ... Hi all, After your helpfull remarks further examination showed me my "galls" are immature acorns indeed. I should have seen that instead of ...
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Sorry, that was much too large - will post again! Found last week at Chichester Harbour. Lots of Dittander (Lepidium latifolium) plants and many had these...
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Hi Sarah, Try Albugo candida - it's common here in Norfolk this year on Honesty (Lunaria annua). Lepidium is not listed as a host in Ellis & Ellis, so it's...
Hi Robert Many thanks for that, it looks spot on!! Any idea if a dried sample is OK? I can always get fresh material if necessary. Sarah (I'm away for a few...
Hi Sarah, Dried material is OK as it is the spores that are used for identification. Albugo sp. sometimes causes distortion and then is included as a gall, I...
Please could someone help with this request? Many thanks Janet> Could you confirm my tentative idents from Redfern & Shirley please? > The one on Salix is a...
... of apple galls. ... had a walk around New Haw and the Wey Canal today and many oaks were heavily infected. ... In Lothingland on the North Suffolk/ Norfolk...
... please? > The one on Salix is a new one of the same gall I sent pictures of on > 14 March; the tree is Salix caprea not S petanrda, and these are this >...
Hello everyone, Earlier this week I found leaves of Grey Alder with extensive patches of white hairs on the underside between the veins. Picture at : ...
All galls fluctuate in numbers from year to year so this is what we should expect. There will be lots of reasons: parasitoids, local weather, synchronisation...
Probably not - depends on whether an organism has caused it. Difficult to prove. Probably most fasciations are due to genetic or physioogical reasons (i.e. ...
Probably it is the same species as on the native alder (we must revise the host plants in the keys). Can't be absolutely sure until someone looks at the mites....
The numbers of Oak apples is a result of the weaher/local conditions at the time the wingless female is climbing up the tree to lay in late winter. Cold winds...
